readInterpolation is limited by nMaxRecursionDepth

Fixes #837

test/asm/interpolation-recursion.asm

@@ -0,0 +1,6 @@
+recurse EQUS "\{recurse\} "
+{recurse}
+
+; FIXME: also handle the following:
+; recurse EQUS "\{recurse\}"
+; {recurse}

test/asm/interpolation-recursion.err

@@ -0,0 +1,67 @@
+FATAL: interpolation-recursion.asm(2):
+    Recursion limit (64) exceeded
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "
+while expanding symbol "{recurse} "

test/asm/nested-interpolation-recursion.asm

@@ -0,0 +1,3 @@
+def s equs "s"
+; 65 nested {}s, recursion limit is 64
+println "{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{s}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}"

test/asm/nested-interpolation-recursion.err

@@ -0,0 +1,2 @@
+FATAL: nested-interpolation-recursion.asm(3):
+    Recursion limit (64) exceeded