Made the following changes: * Changed our multi-line strings to use C++11 raw string literals * Added argument-less macros for checking if GL or EGL had an error. * Made checkCompileFails return the error log, in case a test wants to ensure a specific failure is reported. * Made some more tests use the new MakeShader function. Bug chromium:977665 Change-Id: I5a410d88449d1349806215bd21bb8c2b6d7acc56 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/33268 Kokoro-Presubmit: kokoro <noreply+kokoro@google.com> Reviewed-by: Alexis Hétu <sugoi@google.com> Reviewed-by: Ben Clayton <bclayton@google.com> Tested-by: Sean Risser <srisser@google.com>