move gcc config parsing to parse_inner

Author: Shourya742

src/bootstrap/src/core/config/config.rs

@@ -979,7 +979,15 @@ impl Config {
 
         config.apply_llvm_config(toml.llvm);
 
-        config.apply_gcc_config(toml.gcc);
+        if let Some(gcc) = toml.gcc {
+            config.gcc_ci_mode = match gcc.download_ci_gcc {
+                Some(value) => match value {
+                    true => GccCiMode::DownloadFromCi,
+                    false => GccCiMode::BuildLocally,
+                },
+                None => GccCiMode::default(),
+            };
+        }
 
         match ccache {
             Some(StringOrBool::String(ref s)) => config.ccache = Some(s.to_string()),

src/bootstrap/src/core/config/toml/gcc.rs

@@ -6,29 +6,13 @@
 
 use serde::{Deserialize, Deserializer};
 
+use crate::core::config::Merge;
 use crate::core::config::toml::ReplaceOpt;
-use crate::core::config::{GccCiMode, Merge};
-use crate::{Config, HashSet, PathBuf, define_config, exit};
+use crate::{HashSet, PathBuf, define_config, exit};
 
 define_config! {
     /// TOML representation of how the GCC build is configured.
     struct Gcc {
         download_ci_gcc: Option<bool> = "download-ci-gcc",
     }
 }
-
-impl Config {
-    /// Applies GCC-related configuration from the `TomlGcc` struct to the
-    /// global `Config` structure.
-    pub fn apply_gcc_config(&mut self, toml_gcc: Option<Gcc>) {
-        if let Some(gcc) = toml_gcc {
-            self.gcc_ci_mode = match gcc.download_ci_gcc {
-                Some(value) => match value {
-                    true => GccCiMode::DownloadFromCi,
-                    false => GccCiMode::BuildLocally,
-                },
-                None => GccCiMode::default(),
-            };
-        }
-    }
-}