Steps to reproduce:

1. Add several macros at any level (host/template/global..)
2. Create JS preprocessing that uses existing macros and at least one non-existing macro.
3. Define a variable with a non-existent macro not last in the variable list.
   

var test1 = '{$TEST1}';
var test2 = '{$TEST2}';
var test3 = '{$TEST3}';
return test1+' '+test2+' '+test3; 

var test1 = '{$TEST1}';
var test3 = '{$TEST3}';
var test2 = '{$TEST2}';
return test1+' '+test2+' '+test3; 

Result:
If some macro can't be resolved other macros after it will not be resolved.

Expected:
JavaScript preprocessing step must resolve all macros, regardless of where they are defined in the script.

Test_JS_preprocessing_macros.yaml host added.