[mlir][spirv] Fix SPIR-V translation registration

[antiagainst]

Summary

Now we must explicitly call the registration function given that
MLIR moved away from static registration.

[mravishankar]

Just a nit about commit message. This should also expose -deserialize-spirv right?

[antiagainst]

Address comments

[antiagainst]

In D78934#2005577, @mravishankar wrote:

Just a nit about commit message. This should also expose -deserialize-spirv right?

It's actually -serialize-spirv. But yes indeed the registration function name should be swapped. Fixed.

mlir/include/mlir/InitAllTranslations.h

 //===----------------------------------------------------------------------===//
 
 #ifndef MLIR_INITALLTRANSLATIONS_H
 #define MLIR_INITALLTRANSLATIONS_H
 
 namespace mlir {
 
 void registerFromLLVMIRTranslation();
+void registerFromSPIRVTranslation();
 void registerToLLVMIRTranslation();
 void registerToSPIRVTranslation();
 void registerToNVVMIRTranslation();
 void registerToROCLDIRTranslation();
 void registerAVX512ToLLVMIRTranslation();
 
 // This function should be called before creating any MLIRContext if one
 // expects all the possible translations to be made available to the context
 // automatically.
 inline void registerAllTranslations() {
   static bool init_once = []() {
     registerFromLLVMIRTranslation();
+    registerFromSPIRVTranslation();
     registerToLLVMIRTranslation();
     registerToSPIRVTranslation();
     registerToNVVMIRTranslation();
     registerToROCLDIRTranslation();
     registerAVX512ToLLVMIRTranslation();
     return true;
   }();
   (void)init_once;
 }
 } // namespace mlir
 
 #endif // MLIR_INITALLTRANSLATIONS_H