Type-checking and jump to def bug with nested locals

[azdavis]

Given this:

local a =
  local b = false;
  2;

a + 3

• When jumping from the usage of a to its def, it jumps to b instead.
• There is a type error because it thinks the type of a is a boolean (from b).

[carlverge]

Fixed in 39b61a1afd3a4e58a60484276837f91bddf5d6b8