Add a when translating a multi-line description from Python to CodeGeneration

# Conflicts:
#	CodeGeneration/Sources/SyntaxSupport/gyb_generated/AttributeNodes.swift
#	CodeGeneration/Sources/SyntaxSupport/gyb_generated/AvailabilityNodes.swift
#	CodeGeneration/Sources/SyntaxSupport/gyb_generated/DeclNodes.swift

Author: ahoppen

CodeGeneration/Sources/SyntaxSupport/gyb_generated/AttributeNodes.swift

@@ -73,7 +73,7 @@ public let ATTRIBUTE_NODES: [Node] = [
                  Child(name: "DocumentationArguments",
                        kind: .node(kind: "DocumentationAttributeArguments"))
                ]),
-               description: "The arguments of the attribute. In case the attributetakes multiple arguments, they are gather in theappropriate takes first.",
+               description: "The arguments of the attribute. In case the attribute takes multiple arguments, they are gather in the appropriate takes first.",
                isOptional: true),
          Child(name: "RightParen",
                kind: .token(choices: [.token(tokenKind: "RightParenToken")]),
@@ -116,7 +116,7 @@ public let ATTRIBUTE_NODES: [Node] = [
 
   Node(name: "LabeledSpecializeEntry",
        nameForDiagnostics: "attribute argument",
-       description: "A labeled argument for the `@_specialize` attribute like`exported: true`",
+       description: "A labeled argument for the `@_specialize` attribute like `exported: true`",
        kind: "Syntax",
        traits: [
          "WithTrailingComma"
@@ -139,7 +139,7 @@ public let ATTRIBUTE_NODES: [Node] = [
 
   Node(name: "TargetFunctionEntry",
        nameForDiagnostics: "attribute argument",
-       description: "A labeled argument for the `@_specialize` attribute with a functiondecl value like`target: myFunc(_:)`",
+       description: "A labeled argument for the `@_specialize` attribute with a function decl value like `target: myFunc(_:)`",
        kind: "Syntax",
        traits: [
          "WithTrailingComma"
@@ -169,18 +169,18 @@ public let ATTRIBUTE_NODES: [Node] = [
                description: "The base name of the protocol's requirement."),
          Child(name: "DeclNameArguments",
                kind: .node(kind: "DeclNameArguments"),
-               description: "The argument labels of the protocol's requirement if itis a function requirement.",
+               description: "The argument labels of the protocol's requirement if it is a function requirement.",
                isOptional: true)
        ]),
 
   Node(name: "ImplementsAttributeArguments",
        nameForDiagnostics: "@_implements arguemnts",
-       description: "The arguments for the `@_implements` attribute of the form`Type, methodName(arg1Label:arg2Label:)`",
+       description: "The arguments for the `@_implements` attribute of the form `Type, methodName(arg1Label:arg2Label:)`",
        kind: "Syntax",
        children: [
          Child(name: "Type",
                kind: .node(kind: "Type"),
-               description: "The type for which the method with this attributeimplements a requirement."),
+               description: "The type for which the method with this attribute implements a requirement."),
          Child(name: "Comma",
                kind: .token(choices: [.token(tokenKind: "CommaToken")]),
                description: "The comma separating the type and method name"),
@@ -189,13 +189,13 @@ public let ATTRIBUTE_NODES: [Node] = [
                description: "The base name of the protocol's requirement."),
          Child(name: "DeclNameArguments",
                kind: .node(kind: "DeclNameArguments"),
-               description: "The argument labels of the protocol's requirement if itis a function requirement.",
+               description: "The argument labels of the protocol's requirement if it is a function requirement.",
                isOptional: true)
        ]),
 
   Node(name: "ObjCSelectorPiece",
        nameForDiagnostics: "Objective-C selector piece",
-       description: "A piece of an Objective-C selector. Either consisting of just anidentifier for a nullary selector, an identifier and a colon for alabeled argument or just a colon for an unlabeled argument",
+       description: "A piece of an Objective-C selector. Either consisting of just an identifier for a nullary selector, an identifier and a colon for a labeled argument or just a colon for an unlabeled argument",
        kind: "Syntax",
        children: [
          Child(name: "Name",
@@ -213,7 +213,7 @@ public let ATTRIBUTE_NODES: [Node] = [
 
   Node(name: "DifferentiableAttributeArguments",
        nameForDiagnostics: "'@differentiable' arguments",
-       description: "The arguments for the `@differentiable` attribute: an optionaldifferentiability kind, an optional differentiability parameter clause,and an optional 'where' clause.",
+       description: "The arguments for the `@differentiable` attribute: an optional differentiability kind, an optional differentiability parameter clause, and an optional 'where' clause.",
        kind: "Syntax",
        children: [
          Child(name: "DiffKind",
@@ -228,7 +228,7 @@ public let ATTRIBUTE_NODES: [Node] = [
                isOptional: true),
          Child(name: "DiffParamsComma",
                kind: .token(choices: [.token(tokenKind: "CommaToken")]),
-               description: "The comma following the differentiability parameters clause,if it exists.",
+               description: "The comma following the differentiability parameters clause, if it exists.",
                isOptional: true),
          Child(name: "WhereClause",
                kind: .node(kind: "GenericWhereClause"),
@@ -276,7 +276,7 @@ public let ATTRIBUTE_NODES: [Node] = [
 
   Node(name: "DifferentiabilityParam",
        nameForDiagnostics: "differentiability parameter",
-       description: "A differentiability parameter: either the \"self\" identifier, a functionparameter name, or a function parameter index.",
+       description: "A differentiability parameter: either the \"self\" identifier, a function parameter name, or a function parameter index.",
        kind: "Syntax",
        traits: [
          "WithTrailingComma"
@@ -291,21 +291,21 @@ public let ATTRIBUTE_NODES: [Node] = [
 
   Node(name: "DerivativeRegistrationAttributeArguments",
        nameForDiagnostics: "attribute arguments",
-       description: "The arguments for the '@derivative(of:)' and '@transpose(of:)'attributes: the 'of:' label, the original declaration name, and anoptional differentiability parameter list.",
+       description: "The arguments for the '@derivative(of:)' and '@transpose(of:)' attributes: the 'of:' label, the original declaration name, and an optional differentiability parameter list.",
        kind: "Syntax",
        children: [
          Child(name: "OfLabel",
                kind: .token(choices: [.keyword(text: "of")]),
                description: "The \"of\" label."),
          Child(name: "Colon",
                kind: .token(choices: [.token(tokenKind: "ColonToken")]),
-               description: "The colon separating the \"of\" label and the originaldeclaration name."),
+               description: "The colon separating the \"of\" label and the original declaration name."),
          Child(name: "OriginalDeclName",
                kind: .node(kind: "QualifiedDeclName"),
                description: "The referenced original declaration name."),
          Child(name: "Period",
                kind: .token(choices: [.token(tokenKind: "PeriodToken")]),
-               description: "The period separating the original declaration name and theaccessor name.",
+               description: "The period separating the original declaration name and the accessor name.",
                isOptional: true),
          Child(name: "AccessorKind",
                kind: .token(choices: [.keyword(text: "get"), .keyword(text: "set")]),
@@ -321,7 +321,7 @@ public let ATTRIBUTE_NODES: [Node] = [
 
   Node(name: "QualifiedDeclName",
        nameForDiagnostics: "declaration name",
-       description: "An optionally qualified function declaration name (e.g. `+(_:_:)`,`A.B.C.foo(_:_:)`).",
+       description: "An optionally qualified function declaration name (e.g. `+(_:_:)`, `A.B.C.foo(_:_:)`).",
        kind: "Syntax",
        children: [
          Child(name: "BaseType",
@@ -336,7 +336,7 @@ public let ATTRIBUTE_NODES: [Node] = [
                description: "The base name of the referenced function."),
          Child(name: "Arguments",
                kind: .node(kind: "DeclNameArguments"),
-               description: "The argument labels of the referenced function, optionallyspecified.",
+               description: "The argument labels of the referenced function, optionally specified.",
                isOptional: true)
        ]),
 
@@ -353,7 +353,7 @@ public let ATTRIBUTE_NODES: [Node] = [
                description: "The colon separating \"before\" and the parameter list."),
          Child(name: "VersionList",
                kind: .collection(kind: "AvailabilityVersionRestrictionList", collectionElementName: "Availability"),
-               description: "The list of OS versions in which the declaration became ABIstable.")
+               description: "The list of OS versions in which the declaration became ABI stable.")
        ]),
 
   Node(name: "AvailabilityVersionRestrictionList",
@@ -371,7 +371,7 @@ public let ATTRIBUTE_NODES: [Node] = [
                classification: "Keyword"),
          Child(name: "TrailingComma",
                kind: .token(choices: [.token(tokenKind: "CommaToken")]),
-               description: "A trailing comma if the argument is followed by anotherargument",
+               description: "A trailing comma if the argument is followed by another argument",
                isOptional: true)
        ]),
 

CodeGeneration/Sources/SyntaxSupport/gyb_generated/AvailabilityNodes.swift

@@ -20,7 +20,7 @@ public let AVAILABILITY_NODES: [Node] = [
 
   Node(name: "AvailabilityArgument",
        nameForDiagnostics: "availability argument",
-       description: "A single argument to an `@available` argument like `*`, `iOS 10.1`,or `message: \"This has been deprecated\"`.",
+       description: "A single argument to an `@available` argument like `*`, `iOS 10.1`, or `message: \"This has been deprecated\"`.",
        kind: "Syntax",
        children: [
          Child(name: "Entry",
@@ -35,13 +35,13 @@ public let AVAILABILITY_NODES: [Node] = [
                description: "The actual argument"),
          Child(name: "TrailingComma",
                kind: .token(choices: [.token(tokenKind: "CommaToken")]),
-               description: "A trailing comma if the argument is followed by anotherargument",
+               description: "A trailing comma if the argument is followed by another argument",
                isOptional: true)
        ]),
 
   Node(name: "AvailabilityLabeledArgument",
        nameForDiagnostics: "availability argument",
-       description: "A argument to an `@available` attribute that consists of a label anda value, e.g. `message: \"This has been deprecated\"`.",
+       description: "A argument to an `@available` attribute that consists of a label and a value, e.g. `message: \"This has been deprecated\"`.",
        kind: "Syntax",
        children: [
          Child(name: "Label",
@@ -62,12 +62,12 @@ public let AVAILABILITY_NODES: [Node] = [
 
   Node(name: "AvailabilityVersionRestriction",
        nameForDiagnostics: "version restriction",
-       description: "An argument to `@available` that restricts the availability on acertain platform to a version, e.g. `iOS 10` or `swift 3.4`.",
+       description: "An argument to `@available` that restricts the availability on a certain platform to a version, e.g. `iOS 10` or `swift 3.4`.",
        kind: "Syntax",
        children: [
          Child(name: "Platform",
                kind: .token(choices: [.token(tokenKind: "IdentifierToken")]),
-               description: "The name of the OS on which the availability should berestricted or 'swift' if the availability should berestricted based on a Swift version.",
+               description: "The name of the OS on which the availability should be restricted or 'swift' if the availability should be restricted based on a Swift version.",
                classification: "Keyword"),
          Child(name: "Version",
                kind: .node(kind: "VersionTuple"),
@@ -76,15 +76,15 @@ public let AVAILABILITY_NODES: [Node] = [
 
   Node(name: "VersionTuple",
        nameForDiagnostics: "version tuple",
-       description: "A version number of the form major.minor.patch in which the minorand patch part may be omitted.",
+       description: "A version number of the form major.minor.patch in which the minor and patch part may be omitted.",
        kind: "Syntax",
        children: [
          Child(name: "MajorMinor",
                kind: .token(choices: [.token(tokenKind: "IntegerLiteralToken"), .token(tokenKind: "FloatingLiteralToken")]),
-               description: "In case the version consists only of the major version, aninteger literal that specifies the major version. In casethe version consists of major and minor version number, afloating literal in which the decimal part is interpretedas the minor version."),
+               description: "In case the version consists only of the major version, an integer literal that specifies the major version. In case the version consists of major and minor version number, a floating literal in which the decimal part is interpreted as the minor version."),
          Child(name: "PatchPeriod",
                kind: .token(choices: [.token(tokenKind: "PeriodToken")]),
-               description: "If the version contains a patch number, the periodseparating the minor from the patch number.",
+               description: "If the version contains a patch number, the period separating the minor from the patch number.",
                isOptional: true),
          Child(name: "PatchVersion",
                kind: .token(choices: [.token(tokenKind: "IntegerLiteralToken")]),

CodeGeneration/Sources/SyntaxSupport/gyb_generated/CommonNodes.swift

@@ -75,7 +75,7 @@ public let COMMON_NODES: [Node] = [
 
   Node(name: "CodeBlockItem",
        nameForDiagnostics: nil,
-       description: "A CodeBlockItem is any Syntax node that appears on its own line insidea CodeBlock.",
+       description: "A CodeBlockItem is any Syntax node that appears on its own line inside a CodeBlock.",
        kind: "Syntax",
        children: [
          Child(name: "Item",
@@ -151,7 +151,7 @@ public let COMMON_NODES: [Node] = [
 
   Node(name: "UnexpectedNodes",
        nameForDiagnostics: nil,
-       description: "A collection of syntax nodes that occurred in the source code butcould not be used to form a valid syntax tree.",
+       description: "A collection of syntax nodes that occurred in the source code but could not be used to form a valid syntax tree.",
        kind: "SyntaxCollection",
        element: "Syntax"),