[CodeCompletion] Add test cases for call arg completion

Static methods, implicit member.

Author: rintaro

test/IDE/complete_call_arg.swift

@@ -74,6 +74,15 @@
 // RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=CURRIED_SELF_2 | %FileCheck %s -check-prefix=CURRIED_SELF_1
 // RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=CURRIED_SELF_3 | %FileCheck %s -check-prefix=CURRIED_SELF_1
 
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=STATIC_METHOD_AFTERPAREN_1 | %FileCheck %s -check-prefix=STATIC_METHOD_AFTERPAREN_1
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=STATIC_METHOD_AFTERPAREN_2 | %FileCheck %s -check-prefix=STATIC_METHOD_AFTERPAREN_2
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=STATIC_METHOD_SECOND | %FileCheck %s -check-prefix=STATIC_METHOD_SECOND
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=STATIC_METHOD_SKIPPED | %FileCheck %s -check-prefix=STATIC_METHOD_SKIPPED
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=IMPLICIT_MEMBER_AFTERPAREN_1 | %FileCheck %s -check-prefix=IMPLICIT_MEMBER_AFTERPAREN_1
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=IMPLICIT_MEMBER_AFTERPAREN_2 | %FileCheck %s -check-prefix=IMPLICIT_MEMBER_AFTERPAREN_2
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=IMPLICIT_MEMBER_SECOND | %FileCheck %s -check-prefix=IMPLICIT_MEMBER_SECOND
+// RUN: %target-swift-ide-test -code-completion -source-filename %s -code-completion-token=IMPLICIT_MEMBER_SKIPPED | %FileCheck %s -check-prefix=IMPLICIT_MEMBER_SKIPPED
+
 var i1 = 1
 var i2 = 2
 var oi1 : Int?
@@ -613,3 +622,68 @@ class TestImplicitlyCurriedSelf {
 // CURRIED_SELF_1: End completions
   }
 }
+
+class TestStaticMemberCall {
+  static func create1(arg1: Int) -> TestStaticMemberCall {
+    return TestStaticMemberCall()
+  }
+  static func create2(_ arg1: Int, arg2: Int = 0, arg3: Int = 1, arg4: Int = 2) -> TestStaticMemberCall {
+    return TestStaticMemberCall()
+  }
+}
+func testStaticMemberCall() {
+  let _ = TestStaticMemberCall.create1(#^STATIC_METHOD_AFTERPAREN_1^#)
+// STATIC_METHOD_AFTERPAREN_1: Begin completions, 1 items
+// STATIC_METHOD_AFTERPAREN_1: Decl[StaticMethod]/CurrNominal:     ['(']{#arg1: Int#}[')'][#TestStaticMemberCall#]; name=arg1: Int
+// STATIC_METHOD_AFTERPAREN_1: End completions
+
+  let _ = TestStaticMemberCall.create2(#^STATIC_METHOD_AFTERPAREN_2^#)
+// STATIC_METHOD_AFTERPAREN_2: Begin completions
+// STATIC_METHOD_AFTERPAREN_2-DAG: Decl[StaticMethod]/CurrNominal/TypeRelation[Identical]: ['(']{#(arg1): Int#}[')'][#TestStaticMemberCall#];
+// STATIC_METHOD_AFTERPAREN_2-DAG: Decl[StaticMethod]/CurrNominal/TypeRelation[Identical]: ['(']{#(arg1): Int#}, {#arg2: Int#}, {#arg3: Int#}, {#arg4: Int#}[')'][#TestStaticMemberCall#];
+// STATIC_METHOD_AFTERPAREN_2-DAG: Decl[Struct]/OtherModule[Swift]/TypeRelation[Identical]: Int[#Int#];
+// STATIC_METHOD_AFTERPAREN_2-DAG: Literal[Integer]/None/TypeRelation[Identical]: 0[#Int#];
+// STATIC_METHOD_AFTERPAREN_2: End completions
+
+  let _ = TestStaticMemberCall.create2(1, #^STATIC_METHOD_SECOND^#)
+// STATIC_METHOD_SECOND: Begin completions, 3 items
+// STATIC_METHOD_SECOND: Keyword/ExprSpecific:               arg2: [#Argument name#];
+// STATIC_METHOD_SECOND: Keyword/ExprSpecific:               arg3: [#Argument name#];
+// STATIC_METHOD_SECOND: Keyword/ExprSpecific:               arg4: [#Argument name#];
+// STATIC_METHOD_SECOND: End completions
+
+  let _ = TestStaticMemberCall.create2(1, arg3: 2, #^STATIC_METHOD_SKIPPED^#)
+// STATIC_METHOD_SKIPPED: Begin completions, 2 items
+// FIXME: 'arg3' shouldn't be suggested.
+// STATIC_METHOD_SKIPPED: Keyword/ExprSpecific:               arg3: [#Argument name#];
+// STATIC_METHOD_SKIPPED: Keyword/ExprSpecific:               arg4: [#Argument name#];
+// STATIC_METHOD_SKIPPED: End completions
+}
+func testImplicitMember() {
+  let _: TestStaticMemberCall = .create1(#^IMPLICIT_MEMBER_AFTERPAREN_1^#)
+// IMPLICIT_MEMBER_AFTERPAREN_1: Begin completions, 1 items
+// IMPLICIT_MEMBER_AFTERPAREN_1: Decl[StaticMethod]/CurrNominal:     ['(']{#arg1: Int#}[')'][#TestStaticMemberCall#]; name=arg1: Int
+// IMPLICIT_MEMBER_AFTERPAREN_1: End completions
+
+  let _: TestStaticMemberCall = .create2(#^IMPLICIT_MEMBER_AFTERPAREN_2^#)
+// IMPLICIT_MEMBER_AFTERPAREN_2: Begin completions
+// IMPLICIT_MEMBER_AFTERPAREN_2-DAG: Decl[StaticMethod]/CurrNominal:     ['(']{#(arg1): Int#}[')'][#TestStaticMemberCall#];
+// IMPLICIT_MEMBER_AFTERPAREN_2-DAG: Decl[StaticMethod]/CurrNominal:     ['(']{#(arg1): Int#}, {#arg2: Int#}, {#arg3: Int#}, {#arg4: Int#}[')'][#TestStaticMemberCall#];
+// IMPLICIT_MEMBER_AFTERPAREN_2-DAG: Decl[Struct]/OtherModule[Swift]/TypeRelation[Identical]: Int[#Int#];
+// IMPLICIT_MEMBER_AFTERPAREN_2-DAG: Literal[Integer]/None/TypeRelation[Identical]: 0[#Int#];
+// IMPLICIT_MEMBER_AFTERPAREN_2: End completions
+
+  let _: TestStaticMemberCall = .create2(1, #^IMPLICIT_MEMBER_SECOND^#)
+// IMPLICIT_MEMBER_SECOND: Begin completions, 3 items
+// IMPLICIT_MEMBER_SECOND: Keyword/ExprSpecific:               arg2: [#Argument name#];
+// IMPLICIT_MEMBER_SECOND: Keyword/ExprSpecific:               arg3: [#Argument name#];
+// IMPLICIT_MEMBER_SECOND: Keyword/ExprSpecific:               arg4: [#Argument name#];
+// IMPLICIT_MEMBER_SECOND: End completions
+
+  let _: TestStaticMemberCall = .create2(1, arg3: 2, #^IMPLICIT_MEMBER_SKIPPED^#)
+// IMPLICIT_MEMBER_SKIPPED: Begin completions, 2 items
+// FIXME: 'arg3' shouldn't be suggested.
+// IMPLICIT_MEMBER_SKIPPED: Keyword/ExprSpecific:               arg3: [#Argument name#];
+// IMPLICIT_MEMBER_SKIPPED: Keyword/ExprSpecific:               arg4: [#Argument name#];
+// IMPLICIT_MEMBER_SKIPPED: End completions
+}