[flang][MIF] Fix COSHAPE and THIS_IMAGE(coarray) type mismatch for non-i64 kinds (#208429) Both COSHAPE and THIS_IMAGE(coarray [,team]) return integer arrays whose element type is determined by the Fortran KIND argument (default: i32). The lowering code was ignoring resultType in both cases and hardcoding i64, which caused downstream type mismatches: - COSHAPE: SimplifyHLFIRIntrinsics assertion in PRODUCT(COSHAPE(y)) when the product input type (i64) did not match the declared result type (i32). - THIS_IMAGE(coarray): MLIR verifier error on arith.cmpi with mismatched operand types (i64 vs i32) in comparisons like THIS_IMAGE(a) /= [5,0,-7]. Fix: derive eleTy from resultType in both genCoshape and genThisImage and propagate it into the mif.* op's result type. In MIFOpConversion, extract a shared convertI64SeqToEleTy helper that post-converts the i64 scratch buffer written by the PRIF runtime into the declared-element-type buffer when the two types differ. Both MIFCoshapeOpConversion and MIFThisImageOpConversion call this helper. Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
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