Remove run commands in depgraph.ll that were not being parsed

New example and question about what the optimization should do for an example like @baz in allocator.ll

Add null check for IntOperand

Add new test where argument to malloc isn't a constant.
Use AAPotentialConstantValues to get the constant value.

style

Clean up code

Don't call AAPointerInfoGetOrCreate other than Alloca and Malloc Instruction. Results in infinite loop for instance when calling a ptr

edits

fix example IR

Delete malloc call after attributor update

edit

fix name variable

edits

Support for modifying malloc instructions
TODO: The original malloc call is not being removed by changeAfterManifest even though it is dead.

remove (void)success

Make switch to indentify alloca vs malloc instruction

Add a positive test with TODO

Add API for begin, end size in AAPointerInfo

edits

add maybe_unused pragma

1.) Put method to get offsetBins in AAPointerInfo
2.) work on other comments.

1.) Insert a new instruction instead of modiying the old one (Char array)
2.) Restore value-simplify-local-remote.ll
3.) Add a new positive test to reduce size of array alloca

check for zero alloca and indicate fixpoint.

Remove un-necessary if condition for struct with only one element.

Fix bugs

Revision based on comments

Fix typo in assert.
Add a positive test case for malloc with a TODO.

Edited unit tests

Fixed some comments.