Tests: More broadly use automapping binding/location.

This adds or changes binding/location decorations in 100s of shaders.
It also allows more output (spv.register.autoassign.rangetest.frag)
due to allowing ioMap() to fail.

gtests/Link.FromFile.Vk.cpp

@@ -75,6 +75,11 @@ TEST_P(LinkTestVulkan, FromFile)
     result.linkingOutput = program.getInfoLog();
     result.linkingError = program.getInfoDebugLog();
 
+#ifndef GLSLANG_WEB
+        if (success)
+            program.mapIO();
+#endif
+
     if (success && (controls & EShMsgSpvRules)) {
         spv::SpvBuildLogger logger;
         std::vector<uint32_t> spirv_binary;