execute global initialization after all the other declarations have finished

[jurgenvinju]

This PR partially fixes this situation:

module X

default int f(int _) = 42;
int x = f(0);
int f(0) = 0;

test bool testF() = f(0) == 0 && x == 0;

Because at the time of running the initialization for x the second overload is not there yet, the answer to f(0) will be 42 (and the f will be cached but that is for #2741). While the test is running, both x and f(0) will return the wrong number.

It is the goal of this PR to fix the value of x. The fix for f(0) in the test is in #2741

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46%. Comparing base (30cf1b2) to head (b27fe91).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##              main   #2740   +/-   ##
=======================================
- Coverage       46%     46%   -1%     
+ Complexity    6721    6719    -2     
=======================================
  Files          794     794           
  Lines        65905   65910    +5     
  Branches      9884    9887    +3     
=======================================
- Hits         30827   30819    -8     
- Misses       32690   32700   +10     
- Partials      2388    2391    +3     

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[jurgenvinju]

ok a test was added. I'm merging as soon as it builds here.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud