fix: incorrect globals conflict handling

[i4ki]

Reason for This Change

The fix #738 introduced a bug in the globals conflict checks.
It can be reproduced with the configuration below:

# modules/imported.tm
globals hello {
    world = {
       a = 1
    }
}

# /file.tm
import {
    source = "/modules/imported.tm"
}

globals hello world {
    a = 2
}

When running Terramate it gives the error below:

global eval: terramate schema error: global.hello.world.a attribute redefined: previously defined at /

The reason is that when fixing #738 we switched to store the "config dir" in the eval.Object values because it was needed to solve the problem but the check for conflicting attributes (at runtime) needs the actual source file (not from where it's being imported).

Description of Changes

The fix just stores both the configuration dir and the origin source path in the eval.Object.

[codecov]

Codecov Report

Base: 72.02% // Head: 72.07% // Increases project coverage by +0.04% 🎉

Coverage data is based on head (b75c580) compared to base (abebe36).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #745      +/-   ##
==========================================
+ Coverage   72.02%   72.07%   +0.04%     
==========================================
  Files          73       73              
  Lines       12116    12127      +11     
==========================================
+ Hits         8727     8740      +13     
+ Misses       3050     3049       -1     
+ Partials      339      338       -1     

Flag	Coverage Δ
tests	72.07% <100.00%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
globals/eval_report.go	100.00% <100.00%> (ø)
globals/globals.go	94.73% <100.00%> (+0.17%)	⬆️
hcl/eval/object.go	90.79% <100.00%> (ø)
stack/clone.go	75.22% <0.00%> (+1.76%)	⬆️

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[katcipis]

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