Switch to clang-r339409.

This also changes over llvm-strip to use the -o flag, rather than
relying on nonstandard (and no longer functional) positional arguments.

Bug: http://b/111998531
Test: Multiple new builds. For googlers - http://go/clang-r339409-testing
Change-Id: I8c82d06304af24a001e6552e36e2f540d8e364ce
diff --git a/cc/config/clang.go b/cc/config/clang.go
index 186d790..5e22d6a 100644
--- a/cc/config/clang.go
+++ b/cc/config/clang.go
@@ -178,6 +178,18 @@
 		// Disable c++98-specific warning since Android is not concerned with C++98
 		// compatibility.
 		"-Wno-c++98-compat-extra-semi",
+
+		// Disable this warning until we can fix all instances where it fails.
+		"-Wno-self-assign-overloaded",
+
+		// Disable this warning until we can fix all instances where it fails.
+		"-Wno-constant-logical-operand",
+
+		// Disable this warning because we don't care about behavior with older compilers.
+		"-Wno-return-std-move-in-c++11",
+
+		// Disable this warning until we can fix all instances where it fails.
+		"-Wno-dangling-field",
 	}, " "))
 
 	// Extra cflags for projects under external/ directory to disable warnings that are infeasible