[tests] Adapt other tests to changes of SR-14505

Author: LucianoPAlmeida

test/AutoDiff/SILOptimizer/differentiation_diagnostics.swift

@@ -55,7 +55,7 @@ func try_apply_rethrows(_ x: Float) -> Float {
 @differentiable(reverse)
 func noReturn(_ x: Float) -> Float {
   let _ = x
-  // expected-error @+2 {{missing return in a function expected to return 'Float'}}
+  // expected-error @+2 {{missing return in a global function expected to return 'Float'}}
   // expected-note @+1 {{missing return for differentiation}}
 }
 

test/FixCode/fixits-omit-return.swift

@@ -2,7 +2,7 @@
 
 func ff_fixit_addreturn() -> String {
     print("entering ff_fixit_addreturn()")
-    "foo" // expected-warning {{string literal is unused}} expected-error {{missing return in a function expected to return 'String'; did you mean to return the last expression?}} {{5-5=return }}
+    "foo" // expected-warning {{string literal is unused}} expected-error {{missing return in a global function expected to return 'String'; did you mean to return the last expression?}} {{5-5=return }}
 }
 
 let cl_fixit_addreturn: () -> String = {
@@ -13,7 +13,7 @@ let cl_fixit_addreturn: () -> String = {
 func ff_fixit_addreturn_ifdecl() -> String {
     #if true
     print("entering ff_fixit_addreturn_ifdecl()")
-    "foo" // expected-warning {{string literal is unused}} expected-error {{missing return in a function expected to return 'String'; did you mean to return the last expression?}} {{5-5=return }}
+    "foo" // expected-warning {{string literal is unused}} expected-error {{missing return in a global function expected to return 'String'; did you mean to return the last expression?}} {{5-5=return }}
     #endif
 }
 

test/Frontend/allow-errors.swift

@@ -70,9 +70,9 @@ func test(s: ValidStructInvalidMember) {
 // Check SIL diagnostics are still output (no reason not to output SIL since
 // there were no errors)
 func other() -> Int {}
-// CHECK-VALID: allow-errors.swift:[[@LINE-1]]:22: error: missing return in a function expected to return 'Int'
+// CHECK-VALID: allow-errors.swift:[[@LINE-1]]:22: error: missing return in a global function expected to return 'Int'
 func other2() -> Bool {}
-// CHECK-VALID: allow-errors.swift:[[@LINE-1]]:24: error: missing return in a function expected to return 'Bool'
+// CHECK-VALID: allow-errors.swift:[[@LINE-1]]:24: error: missing return in a global function expected to return 'Bool'
 #endif
 
 // All invalid uses should have no errors in the file itself, all referenced

test/SourceKit/Sema/enum-toraw/enum-toraw.swift.response

@@ -18,7 +18,7 @@
     key.column: 1,
     key.filepath: t2.swift,
     key.severity: source.diagnostic.severity.error,
-    key.description: "missing return in a function expected to return 'Bool'",
+    key.description: "missing return in a global function expected to return 'Bool'",
     key.diagnostic_stage: source.diagnostic.stage.swift.sema
   }
 ]