[validation tests] Improve concurrency

This improves 'ninja check-swift-validation' by about 35% on my Linux desktop.

Author: davezarzycki

Diff for: validation-test/stdlib/FixedPointConversion.swift.gyb renamed to test/stdlib/Inputs/FixedPointConversion.swift.gyb

@@ -1,12 +1,3 @@
-// RUN: %empty-directory(%t)
-// RUN: %S/../../utils/gyb %s -o %t/FixedPointConversion.swift
-// RUN: %S/../../utils/line-directive %t/FixedPointConversion.swift -- %target-build-swift %t/FixedPointConversion.swift -o %t/a.out_Debug -Onone
-// RUN: %S/../../utils/line-directive %t/FixedPointConversion.swift -- %target-build-swift %t/FixedPointConversion.swift -o %t/a.out_Release -O
-//
-// RUN: %S/../../utils/line-directive %t/FixedPointConversion.swift -- %target-run %t/a.out_Debug
-// RUN: %S/../../utils/line-directive %t/FixedPointConversion.swift -- %target-run %t/a.out_Release
-// REQUIRES: executable_test
-
 // FIXME(integers): add tests that perform the same checks in generic code
 
 %{

Diff for: validation-test/stdlib/FloatingPointConversion.swift.gyb renamed to test/stdlib/Inputs/FloatingPointConversion.swift.gyb

@@ -1,12 +1,3 @@
-// RUN: %empty-directory(%t)
-// RUN: %gyb %s -o %t/FloatingPointConversion.swift
-// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-build-swift %t/FloatingPointConversion.swift -Xfrontend -disable-access-control -o %t/a.out_Debug -Onone
-// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-build-swift %t/FloatingPointConversion.swift -Xfrontend -disable-access-control -o %t/a.out_Release -O
-//
-// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-run %t/a.out_Debug
-// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-run %t/a.out_Release
-// REQUIRES: executable_test
-
 import StdlibUnittest
 
 %{

Diff for: validation-test/stdlib/FixedPointConversion_Debug.test-sh

@@ -0,0 +1,6 @@
+// RUN: %empty-directory(%t)
+// RUN: %gyb %S/Inputs/FixedPointConversion.swift.gyb -o %t/FixedPointConversion.swift
+// RUN: %line-directive %t/FixedPointConversion.swift -- %target-build-swift %t/FixedPointConversion.swift -o %t/a.out_Debug -Onone
+//
+// RUN: %line-directive %t/FixedPointConversion.swift -- %target-run %t/a.out_Debug
+// REQUIRES: executable_test

Diff for: validation-test/stdlib/FixedPointConversion_Release.test-sh

@@ -0,0 +1,6 @@
+// RUN: %empty-directory(%t)
+// RUN: %gyb %S/Inputs/FixedPointConversion.swift.gyb -o %t/FixedPointConversion.swift
+// RUN: %line-directive %t/FixedPointConversion.swift -- %target-build-swift %t/FixedPointConversion.swift -o %t/a.out_Release -O
+//
+// RUN: %line-directive %t/FixedPointConversion.swift -- %target-run %t/a.out_Release
+// REQUIRES: executable_test

Diff for: validation-test/stdlib/FloatingPointConversion_Debug.test-sh

@@ -0,0 +1,6 @@
+// RUN: %empty-directory(%t)
+// RUN: %gyb %S/Inputs/FloatingPointConversion.swift.gyb -o %t/FloatingPointConversion.swift
+// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-build-swift %t/FloatingPointConversion.swift -Xfrontend -disable-access-control -o %t/a.out_Debug -Onone
+//
+// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-run %t/a.out_Debug
+// REQUIRES: executable_test

Diff for: validation-test/stdlib/FloatingPointConversion_Release.test-sh

@@ -0,0 +1,6 @@
+// RUN: %empty-directory(%t)
+// RUN: %gyb %S/Inputs/FloatingPointConversion.swift.gyb -o %t/FloatingPointConversion.swift
+// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-build-swift %t/FloatingPointConversion.swift -Xfrontend -disable-access-control -o %t/a.out_Release -O
+//
+// RUN: %line-directive %t/FloatingPointConversion.swift -- %target-run %t/a.out_Release
+// REQUIRES: executable_test