tree-optimization/119145 - avoid stray .MASK_CALL after vectorization

tree-optimization/119145 - avoid stray .MASK_CALL after vectorization

When we BB vectorize an if-converted loop body we make sure to not
leave around .MASK_LOAD or .MASK_STORE created by if-conversion but
we failed to check for .MASK_CALL.

	PR tree-optimization/119145
	* tree-vectorizer.cc (try_vectorize_loop_1): Avoid BB
	vectorizing an if-converted loop body when there's a .MASK_CALL
	in the loop body.

	* gcc.dg/vect/pr119145.c: New testcase.

(cherry picked from commit 7950d4cceb9fc7559b1343c95fc651cefbe287a0)