Enable aot compiler and jit based on llvm-14.0 and llvm-15.0git, replace LLVMBuildLoad/LLVMBuildInBoundsGEP/LLVMBuildCall with LLVMBuildLoad2/LLVMBuildInBoundsGEP2/LLVMBuildCall2, and pass them with related types, so as to meet the requirements of opaque pointers. And fix several compilation errors for llvm-14.0/15.0git. Most spec cases and standalone cases are tested.