use "UndefinedBehavior" instead of "Undefined" for UBSan

Author: JakeIsMeh

src/tools/gcc.lua

@@ -142,7 +142,7 @@
 		sanitize = {
 			Address = "-fsanitize=address",
 			Thread = "-fsanitize=thread",
-			Undefined = "-fsanitize=undefined",
+			UndefinedBehavior = "-fsanitize=undefined",
 		},
 		visibility = {
 			Default = "-fvisibility=default",

tests/tools/test_clang.lua

@@ -146,7 +146,7 @@
 
 	-- UBSan
 	function suite.cxxflags_onSanitizeUndefined()
-		sanitize { "Undefined" }
+		sanitize { "UndefinedBehavior" }
 		prepare()
 		test.contains({ "-fsanitize=undefined" }, clang.getcxxflags(cfg))
 		test.contains({ "-fsanitize=undefined" }, clang.getcflags(cfg))

tests/tools/test_gcc.lua

@@ -403,7 +403,7 @@
 
 	-- UBSan
 	function suite.cxxflags_onSanitizeUndefined()
-		sanitize { "Undefined" }
+		sanitize { "UndefinedBehavior" }
 		prepare()
 		test.contains({ "-fsanitize=undefined" }, gcc.getcxxflags(cfg))
 		test.contains({ "-fsanitize=undefined" }, gcc.getcflags(cfg))