message: Fix a typo in ir_array.h
diff: @@ -83,7 +83,7 @@ class IrArray {
  Index(tensorflow::gtl::ArraySlice<llvm::Value*> multidim,
  const Shape& shape, llvm::IRBuilder<>* ir_builder);
  - // Consturcts an index from both a multi-dimensional index and a linear
  + // Constructs an index from both a multi-dimensional index and a linear
  // index. "shape" has the same meaning as that in the constructor that takes
  // only a linear index.
  Index(tensorflow::gtl::ArraySlice<llvm::Value*> multidim,
  