[compiler/decompiler] Take the address of a variable

[water111]

So far:

• Support taking the address of a variable in the compiler
• Get the address is type analysis (todo - I forgot the pointer part)
• Convert to (& var)

To do:

• Allow overriding the type of a stack variable
• Fix bug in type pass (pointer)

[coveralls]

Pull Request Test Coverage Report for Build 907069911

• 124 of 186 (66.67%) changed or added relevant lines in 22 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.02%) to 69.661%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
common/goos/Reader.cpp	1	2	50.0%
decompiler/analysis/anonymous_function_def.cpp	0	1	0.0%
goalc/compiler/IR.cpp	20	21	95.24%
decompiler/util/config_parsers.cpp	10	12	83.33%
goalc/regalloc/Allocator.cpp	27	29	93.1%
decompiler/IR2/Env.h	6	9	66.67%
decompiler/IR2/AtomicOpTypeAnalysis.cpp	7	11	63.64%
decompiler/analysis/type_analysis.cpp	5	9	55.56%
goalc/compiler/compilation/Type.cpp	12	16	75.0%
decompiler/IR2/Form.cpp	5	10	50.0%

Files with Coverage Reduction	New Missed Lines	%
decompiler/IR2/AtomicOpTypeAnalysis.cpp	1	77.8%

Totals
Change from base Build 907056422:	-0.02%
Covered Lines:	36131
Relevant Lines:	51867

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💛 - Coveralls