Switch from clang-r370808b to clang-r377782

Allow new clang compiler warnings until they are
fixed or suppressed in all branches.

Bug: 145916209
Test: make checkbuild
Change-Id: Ic873b8d705dacd0d92f9031b3960e01283090363
diff --git a/cc/config/global.go b/cc/config/global.go
index 333885f..57a5852 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -127,8 +127,8 @@
 
 	// prebuilts/clang default settings.
 	ClangDefaultBase         = "prebuilts/clang/host"
-	ClangDefaultVersion      = "clang-r370808b"
-	ClangDefaultShortVersion = "10.0.2"
+	ClangDefaultVersion      = "clang-r377782"
+	ClangDefaultShortVersion = "10.0.3"
 
 	// Directories with warnings from Android.bp files.
 	WarningAllowedProjects = []string{