RenamePropertyWithSameNameAsClass could loop infinitely when a property shared its class name AND a property named TypeName1 already existed — candidate was computed once before the while loop and never updated on increment.

Changes

• CSharpGenerator.cs: Update candidate inside the loop body so it reflects the incremented number each iteration
• GeneralGeneratorTests.cs + snapshot: Add regression test covering the Foo / Foo1 collision scenario, asserting Foo is correctly renamed to Foo2

// Before — candidate is stale, loop never terminates if TypeName1 exists
var candidate = typeName + number;
while (properties.Exists(p => p.PropertyName == candidate))
{
    number++;
}

// After
var candidate = typeName + number;
while (properties.Exists(p => p.PropertyName == candidate))
{
    number++;
    candidate = typeName + number;
}

• Fixes Infinite loop in RenamePropertyWithSameNameAsClass #1671

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