Bump llvm-go to C++14

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368989 91177308-0d34-0410-b5e6-96231b3b80d8

bindings/go/README.txt

@@ -48,7 +48,7 @@ Alternatively, you can build LLVM yourself, but you must then set the
 CGO_CPPFLAGS, CGO_CXXFLAGS and CGO_LDFLAGS environment variables:
 
     $ export CGO_CPPFLAGS="`/path/to/llvm-build/bin/llvm-config --cppflags`"
-    $ export CGO_CXXFLAGS=-std=c++11
+    $ export CGO_CXXFLAGS=-std=c++14
     $ export CGO_LDFLAGS="`/path/to/llvm-build/bin/llvm-config --ldflags --libs --system-libs all`"
     $ go build -tags byollvm
 

bindings/go/llvm/llvm_config.go.in

@@ -3,7 +3,7 @@
 package llvm
 
 /*
-#cgo CXXFLAGS: -std=c++11
+#cgo CXXFLAGS: -std=c++14
 #cgo CPPFLAGS: @LLVM_CFLAGS@
 #cgo LDFLAGS: @LLVM_LDFLAGS@
 */

tools/llvm-go/llvm-go.go

@@ -103,7 +103,7 @@ func llvmFlags() compilerFlags {
 	}
 	return compilerFlags{
 		cpp: llvmConfig("--cppflags"),
-		cxx: "-std=c++11" + " " + stdLibOption,
+		cxx: "-std=c++14" + " " + stdLibOption,
 		ld:  ldflags,
 	}
 }