[test] Utilize %target-run-simple-swift where possible

rintaro · rintaro · commit ea2c7a691614 · 2016-06-15T11:49:44.000+09:00
diff --git a/test/1_stdlib/NSStringAPI.swift b/test/1_stdlib/NSStringAPI.swift
@@ -1,7 +1,4 @@
-// RUN: rm -rf %t
-// RUN: mkdir -p %t
-// RUN: %target-build-swift %s -o %t/a.out
-// RUN: %target-run %t/a.out
+// RUN: %target-run-simple-swift
 // REQUIRES: executable_test
 
 // REQUIRES: objc_interop
diff --git a/test/1_stdlib/StringAPI.swift b/test/1_stdlib/StringAPI.swift
@@ -1,7 +1,4 @@
-// RUN: rm -rf %t
-// RUN: mkdir -p %t
-// RUN: %target-build-swift %s -o %t/a.out
-// RUN: %target-run %t/a.out
+// RUN: %target-run-simple-swift
 // REQUIRES: executable_test
 
 //
diff --git a/test/1_stdlib/subString.swift b/test/1_stdlib/subString.swift
@@ -1,7 +1,4 @@
-// RUN: rm -rf %t
-// RUN: mkdir -p %t
-// RUN: %target-build-swift %s -o %t/a.out
-// RUN: %target-run %t/a.out
+// RUN: %target-run-simple-swift
 // REQUIRES: executable_test
 
 import StdlibUnittest
