Improve parsing of tf files #708

Job	Run time
Error	35s
always-new	1m 20s
Full colour plan for diff highlighting	56s
Default path	36s
Error without comment	29s
No changes	33s
No changes without comment	28s
Error with invalid paths	39s
Change terraform 11	32s
Change terraform 12	32s
Change terraform 13	38s
Change terraform 15	34s
Change terraform 15.4	34s
Change latest terraform	32s
Change terraform 14	34s
Change without github comment	28s
Change with shell init commands	28s
Plan using deprecated var and sensitive variable	34s
Plan variables some which are sensitive	36s
Plan single sensitive variable	33s
Plan single variable	36s
Add comment without token	30s
Test plan text on Terraform 1.4	54s
	14m 11s

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