Move the definition of spv_instruction_t to an internal
header file, since it now depends on C++ and is not
used by the external interface.
Use a std::vector<uint32_t> in spv_instruction_t
instead of a fixed size array.
Fixed an issue where some of the tests were testing
the wrong word with the wrong operation. (| != ||).
Coalesced the many versions of EnumCase into one.
Added a get_value() to EnumCase to convert to a uint32_t.
Replaces ASSERT_TRUE(pointer), with ASSERT_NE(nullptr, pointer),
so that we do not do implicit pointer->bool conversion.
Removed const from some test structs since gtest needs to be
able to swap them.
- a single hyphen is a string, not a number.
- a string with more than one period is a string, not a number
- check for string overflow
Add some unit tests
