Manta COBOL scanner should support DECLARE table statement

Background

Post upgrade to Manta 42.13.x from 42.12.x, we saw few parsing errors
"ANTLR_PARSING_FAILURE".

Failed to parse input at position 2,13 - the statement will be ignored.
Parser error: no viable alternative at input '('
Parse trace: non_reserved_words <- identifier <- identifier <- qualified_name_identifier <- qualified_name <- datatype <- datatype <- declare_statement_int <- declare_statement <- declare_statements <- single_statement <- statement_int <- statement_list_int <- statement_list <- db2_script
Script context: ... DECLARE XSC_CLNT_T TABLE
(

CIF_STATIC_KEY DECIMAL(15,0) NOT NULL,
CIF_SHORT_NUM CHAR ...

The scenario is COBOL program include a include file that has DECLARE statements. In this case, /COBOL/XSC003CC.cbl INCLUDE X1W838DG

 DCLGEN FOR STATIC KEY LINK TABLE

#C0016     EXEC SQL

#C0016       INCLUDE X1W838DG

#C0016     END-EXEC

X1W838DG.in has DECLARE STATEMENTs example below.

EXEC SQL DECLARE XSC_STAT_KEY_LNK_T TABLE                            
           ( TBL_TYP_CD                     CHAR(1) NOT NULL,                   
             ID_NBR                         INTEGER NOT NULL,                   
             CIF_STATIC_KEY                 DECIMAL(15, 0),                     
#C0001       LAST_CHNG_UID                  CHAR(8),                            
#C0001       LAST_CHNG_TS                   TIMESTAMP,                          
#C0001       CRT_UID                        CHAR(8),                            
#C0001       CRT_TS                         TIMESTAMP                           
           ) END-EXEC.

Lineage impact

Manta COBOL scanner is unable to parse DECLARE statement causing parsing error. There by impacts the lineage generated in Manta

Why it is important?

By adding the support of DECLARE statement the lineage would be complete and accurate.