Cannot parse weird tupple index about gccrs

[nirmal-j-patel]

It appears that this happens because the parser consider 0.0 as floating point number rather than two index operators. Do we need to parse indices differently (by disabling float checking, disallowing index beginning with 0, etc.)?
https://doc.rust-lang.org/reference/tokens.html#tuple-index

[P-E-P]

It appears that this happens because the parser consider 0.0 as floating point number rather than two index operators. Do we need to parse indices differently (by disabling float checking, disallowing index beginning with 0, etc.)? https://doc.rust-lang.org/reference/tokens.html#tuple-index

We should look if #2694 fixes the issue then

[P-E-P]

#2694 Indeed fixes a part of this code, here is the updated error message (afbd2a4):

./test.rs:5:22: error: expecting ‘;’ but ‘integer literal’ found
    5 |     let _ = tuple.0. 0;
      |                      ^
./test.rs:5:5: error: failed to parse statement or expression in block expression
    5 |     let _ = tuple.0. 0;
      |     ^~~
./test.rs:5:22: error: unrecognised token ‘integer literal’ for start of item
    5 |     let _ = tuple.0. 0;