Merge "Fix darwin shared library and proc macro suffixes."

rust/config/x86_darwin_host.go

@@ -62,7 +62,11 @@ func (t *toolchainDarwinX8664) RustTriple() string {
 	return "x86_64-apple-darwin"
 }
 
-func (t *toolchainDarwin) ShlibSuffix() string {
+func (t *toolchainDarwin) SharedLibSuffix() string {
+	return ".dylib"
+}
+
+func (t *toolchainDarwin) ProcMacroSuffix() string {
 	return ".dylib"
 }