Test 1: ByRef through 2 levels of recursion

Result: MODIFIED_BY_INNER
myStr after: MODIFIED_BY_INNER
PASS: ByRef propagated through recursive calls

Test 2: Application 2D Array + ByRef + Recursive Call (treatConstants simulation)

testStr after: Hello REPLACED_MYCODE World
testResult: Hello REPLACED_MYCODE World
PASS: Placeholder correctly replaced on first call

Test 3: Application 2D Array - store and retrieve

isEmpty: False
lbound(arr,2): 0
ubound(arr,2): 3
arr(0,0)=10 | arr(1,0)=ALPHA
arr(0,1)=20 | arr(1,1)=BETA
arr(0,2)=30 | arr(1,2)=GAMMA
arr(0,3)=40 | arr(1,3)=DELTA
PASS: 2D array correctly stored and retrieved from Application

Test 4: Implicit class method call in buildCache

data(0,0)=A | data(1,0)=CODE_A
data(0,1)=B | data(1,1)=CODE_B
PASS: Implicit class method call works

PASS: Set d = functionName (no parens) works

Done.