moved all crates into seperate folder + related path fixes

crates/compiler/parse/src/test_helpers.rs

@@ -0,0 +1,41 @@
+use crate::ast;
+use crate::ast::Defs;
+use crate::module::module_defs;
+use crate::parser::Parser;
+use crate::parser::SourceError;
+use crate::parser::SyntaxError;
+use crate::state::State;
+use bumpalo::Bump;
+use roc_region::all::Loc;
+use roc_region::all::Position;
+
+pub fn parse_expr_with<'a>(
+    arena: &'a Bump,
+    input: &'a str,
+) -> Result<ast::Expr<'a>, SyntaxError<'a>> {
+    parse_loc_with(arena, input)
+        .map(|loc_expr| loc_expr.value)
+        .map_err(|e| e.problem)
+}
+
+#[allow(dead_code)]
+pub fn parse_loc_with<'a>(
+    arena: &'a Bump,
+    input: &'a str,
+) -> Result<Loc<ast::Expr<'a>>, SourceError<'a, SyntaxError<'a>>> {
+    let state = State::new(input.trim().as_bytes());
+
+    match crate::expr::test_parse_expr(0, arena, state.clone()) {
+        Ok(loc_expr) => Ok(loc_expr),
+        Err(fail) => Err(SyntaxError::Expr(fail, Position::default()).into_source_error(&state)),
+    }
+}
+
+pub fn parse_defs_with<'a>(arena: &'a Bump, input: &'a str) -> Result<Defs<'a>, SyntaxError<'a>> {
+    let state = State::new(input.trim().as_bytes());
+
+    match module_defs().parse(arena, state) {
+        Ok(tuple) => Ok(tuple.1),
+        Err(tuple) => Err(tuple.1),
+    }
+}